Can’t change permissions – “The parameter is incorrect”

This is a work around that we've been using for months, for what its worth:

Hostname: NSERVER
Model: ReadyNAS 2100 v1 [X-RAID2]
Firmware: RAIDiator 4.2.16
Memory: 1024 MB [5-5-5-24 DDR2 ECC]

Windows 2003 Server Domain: SMEMAINE

1. regular user George creates a new folder (aaaatest) on the root of share //NSERVER/CFS using a windowsXP
workstation with the latest SPs and updates.

2. No other users can access the folder aaaatest.

3. As a domain user and admin I also cannot access the folder.
I have a mapped drive (N:) to //NSERVER/CFS and a DOS batch file named fixp.cmd
I do the following work around:

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From a DOS shell run cacls (with arg: aaaatest) to view the Windows Access Control List; the output is:


N:\aaaatest SMEMAINE\Domain Guests:(OI)(CI)(special access:)
SMEMAINE\george:F
SMEMAINE\Domain Users:(special access:)
Everyone:F
CREATOR OWNER:(OI)(CI)(IO)F
CREATOR GROUP:(OI)(CI)(IO)(special access:)
Everyone:(OI)(CI)(IO)F

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from a DOS shell we run the fixp.cmd passing it the folder name 'aaaatest'.
The batch file contains the single line:

cacls "\\NSERVER\CFS\%1" /C /T /G "SMEMAINE\Domain Users":F


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running cacls again with the following:

N:\aaaatest SMEMAINE\Domain Users:(OI)(CI)F
Everyone:(OI)(CI)(special access:)
SMEMAINE\george:F
CREATOR OWNER:(OI)(CI)(IO)F
CREATOR GROUP:(OI)(CI)(IO)F
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We use no special permissions so this is about the simplest case you'll find.
Any user authenticated on the domain can now access the folder aaaatest and all the files under it.
Folders and files created subsequently are also accessible to domain users.